Slag slipping plate device for preventing slag adhesion
By using a segmented design and a vibration-driven slag chute device, the problems of slag adhesion and structural failure in converter steelmaking were solved, achieving smooth slag flow and device durability, and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-27
- Publication Date
- 2026-04-14
AI Technical Summary
Existing slag chute devices suffer from problems such as slag residue, structural deformation failure, and insufficient adaptability in converter steelmaking, resulting in short service life and high maintenance costs.
The slag chute device, which adopts a segmented design, combines an eccentric wheel and a support spring. The vibration generation mechanism drives the steel plate to vibrate, and the hinge mechanism and detachable bracket ensure the stability and smooth operation of the slag chute.
It effectively prevents slag from sticking to the slag chute, improves slag flow performance, extends service life, reduces maintenance costs, and ensures smooth production.
Smart Images
Figure CN224119035U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of converter steelmaking technology, and in particular relates to a slag chute device for preventing slag sticking. Background Technology
[0002] In converter steelmaking, the intense carbon-oxygen reaction in the high-temperature molten pool causes slag and molten steel to splash, especially during the middle stage of blowing, when a large amount of viscous slag overflows from the furnace opening. Currently, the industry commonly uses slag chutes as slag guiding devices, which use inclined plates to guide the overflowing slag to the slag pot for recycling. However, traditional slag chutes have significant drawbacks in practical applications:
[0003] Slag residue problem: Due to the significant fluctuations in slag viscosity with temperature, without a forced slag removal mechanism, the slag layer adhering to the plate surface will gradually thicken and form a hardened crust.
[0004] Structural deformation failure: Non-uniform accumulation of residual slag layer will cause local thermal expansion difference of slag chute, and the plate surface will warp and deform under high temperature (>600℃) environment.
[0005] Insufficient adaptability: Existing slag chute plates mostly adopt a single-curvature arc design (curvature radius is fixed at 1.5-2m), which makes it difficult to match the change in the movement trajectory of splashed slag material from the initial high-impact stage to the slow-flowing final stage, exacerbating the retention of slag particles on the plate surface.
[0006] Therefore, developing a slag chute device that combines high efficiency in preventing slag sticking, resistance to thermal deformation, and adaptability to different operating conditions has become a key technical requirement for improving converter operating rates and reducing maintenance costs. Utility Model Content
[0007] In view of the problems existing in the prior art, this utility model provides a slag chute device for preventing slag from sticking to the slag chute.
[0008] This utility model is implemented as follows: a slag chute device for preventing slag sticking, characterized in that it includes: a steel plate body, the steel plate body adopting a segmented design, including an upper first arc segment and a lower second arc segment, wherein the radius of curvature of the second arc segment is smaller than that of the first arc segment; a hinge mechanism, disposed at the upper end of the steel plate body, for hinged to the side wall of the converter; a support spring, one end of which is connected to the lower end of the steel plate body, and the other end is fixed to the side wall of the converter through a bracket, wherein the support spring is a metal spring; and a vibration generating mechanism, installed at the bottom of the steel plate body, for driving the steel plate body to vibrate, so that the slag slides down the segmented arc of the steel plate body into the slag pot.
[0009] The vibration generating mechanism is installed below the connection between the adjacent segments of the first arc segment and the lower second arc segment.
[0010] The vibration generating mechanism includes a motor and an eccentric wheel driven by the motor. The rotation axis of the eccentric wheel is perpendicular to the vibration direction of the steel plate body. After the motor is started, the rotation of the eccentric wheel drives the steel plate body to vibrate periodically.
[0011] The radius of curvature of the first arc segment is 2m-3m, and the radius of curvature of the second arc segment gradually decreases along the direction of slag falling.
[0012] The support spring and the bracket are detachably connected. The bracket is welded and fixed to the side wall of the converter, and the extension and retraction direction of the support spring is consistent with the vibration direction of the steel plate body.
[0013] The advantages and technical effects of this utility model are as follows: This anti-slag-sticking slag chute device, through the synergistic action of an eccentric wheel and a supporting spring, causes the steel plate body to vibrate regularly, thereby effectively preventing slag adhesion to the chute. The chute innovatively adopts a segmented arc design, with a larger arc at the top, which significantly reduces the resistance of slag during flow, effectively preventing slag accumulation and extending the service life of the chute; the lower arc gradually narrows, precisely matching the slag drop point to ensure smooth slag flow into the slag pot. This ingenious design not only greatly improves the flowability of slag but also significantly reduces slag adhesion to the chute, effectively ensuring a smooth and unobstructed slag chute process and providing solid and reliable support for production in industries such as steel smelting. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model.
[0015] In the diagram: 1. First arc segment; 2. Second arc segment; 3. Vibration generating mechanism; 31. Motor; 32. Eccentric wheel; 4. Support spring; 5. Bracket; 6. Side wall of converter; 61. Hinge mechanism. Detailed Implementation
[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.
[0017] Please see Figure 1A slag chute device for preventing slag adhesion includes: a steel plate body 1, wherein the steel plate body adopts a segmented design, comprising an upper first arc segment 1 and a lower second arc segment 2, and the radius of curvature of the second arc segment is smaller than that of the first arc segment; the segmented design of the steel plate body, with the larger radius of curvature of the upper first arc segment, can reduce the resistance of slag during the flow process, prevent slag from accumulating on the slag chute, and thus improve the slag flow efficiency. The gradually decreasing radius of curvature of the lower second arc segment can better adapt to the slag drop point, allowing the slag to fall more smoothly into the slag pot. This design not only improves the slag flow performance but also helps to reduce slag adhesion on the slag chute, extending the service life of the slag chute.
[0018] The hinge mechanism 61, located at the upper end of the steel plate body, is used to hinge the steel plate body to the converter side wall 6. The hinge mechanism allows the steel plate body to be flexibly installed on the converter side wall, facilitating installation and maintenance. At the same time, the hinge structure can also buffer the impact of slag on the slag chute to a certain extent, protecting the slag chute from damage and further improving the durability and stability of the slag chute.
[0019] A support spring 4 is provided, with one end connected to the lower end of the steel plate body and the other end fixed to the side wall 6 of the converter via a bracket 5. The support spring 4 is a metal spring. The support spring provides stable support to the steel plate body, ensuring that the slag chute maintains a stable posture during vibration. At the same time, the metal spring has high elasticity and durability, and can maintain stable performance during long-term use, providing strong support for the normal operation of the slag chute.
[0020] Vibration generating mechanism 3, installed at the bottom of the steel plate body, drives the steel plate body to vibrate, causing the slag to slide down along the segmented arc of the steel plate body into the slag pot. By driving the steel plate body to vibrate, the vibration generating mechanism effectively prevents slag from sticking to the slag chute. The vibration continuously disturbs the slag on the slag chute, avoiding the phenomenon of slag remaining stationary and adhering to the slag, thereby improving the slag's flowability and ensuring a smooth slag chute process.
[0021] The vibration generating mechanism is installed below the connection between adjacent segments of the first arc segment 1 and the second arc segment 2. Installing the vibration generating mechanism below the connection between adjacent segments of the first arc segment and the second arc segment allows the vibration to be transmitted more evenly to the entire steel plate body, thus improving the vibration efficiency.
[0022] The vibration generating mechanism includes a motor 31 and an eccentric wheel 322 driven by the motor. The rotation axis of the eccentric wheel 32 is perpendicular to the vibration direction of the steel plate body. After the motor starts, the rotation of the eccentric wheel 32 drives the steel plate body to vibrate periodically. The motor-driven eccentric wheel can generate stable periodic vibration, which effectively prevents slag from sticking to the slag chute. The rotation of the eccentric wheel causes the steel plate body to produce periodic displacement in the vertical direction, thereby continuously disturbing the slag and preventing slag adhesion. At the same time, the motor-driven method makes the vibration generating mechanism highly controllable and stable, and easy to adjust according to actual needs.
[0023] The radius of curvature of the first arc segment 1 is 2m-3m, while the radius of curvature of the second arc segment 2 gradually decreases along the direction of slag descent. The larger radius of curvature in the first arc segment reduces the resistance of the slag during flow, allowing it to pass more smoothly through the slag chute. The gradually decreasing radius of curvature in the second arc segment better adapts to the slag drop point, enabling the slag to fall more accurately into the slag pot. This segmented arc design not only improves the slag flow performance but also helps reduce slag adhesion on the slag chute, thus improving slag chuting efficiency.
[0024] The support spring 4 and the bracket 5 are detachably connected. The bracket 5 is welded and fixed to the side wall of the converter 6, and the extension and contraction direction of the support spring 4 is consistent with the vibration direction of the steel plate body. The detachable connection between the support spring and the bracket facilitates replacement and adjustment of the support spring during installation and maintenance. The bracket, welded and fixed to the side wall of the converter, provides a stable support point. The extension and contraction direction of the support spring is consistent with the vibration direction of the steel plate body, which can more effectively transmit vibration energy and improve vibration efficiency. Simultaneously, this design also avoids excessive lateral force generated by the support spring during vibration, ensuring the overall stability of the slag chute.
[0025] In summary, this anti-slag-sticking slag chute device effectively prevents slag from sticking to the chute by using the combined action of an eccentric wheel and a support spring to vibrate the steel plate. The chute features a segmented arc design; the larger arc at the top reduces slag flow resistance, prevents accumulation, and extends service life; the gradually decreasing arc at the bottom accommodates the slag falling into the slag pot. This design not only improves the slag flow performance but also significantly reduces slag sticking to the chute, ensuring smooth slag chuting and providing strong support for production in industries such as steel smelting.
[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A slag chute device for preventing slag sticking, characterized in that, include: The steel plate body adopts a segmented design, including an upper first arc segment (1) and a lower second arc segment (2), and the radius of curvature of the second arc segment is smaller than that of the first arc segment; The hinge mechanism (61) is located at the upper end of the steel plate body and is used to hinge the steel plate body to the converter side wall (6). The supporting spring (4) has one end connected to the lower end of the steel plate body and the other end fixed to the side wall of the converter (6) by the bracket (5). The supporting spring (4) is a metal spring. The vibration generating mechanism (3) is installed at the bottom of the steel plate body and is used to drive the steel plate body to generate vibration, so that the slag slides down the segmented arc of the steel plate body into the slag pot.
2. The slag deflector device according to claim 1, wherein: The vibration generating mechanism is installed below the connection between the adjacent segments of the first arc segment (1) and the lower second arc segment (2).
3. The slag deflector device of claim 2, wherein: The vibration generating mechanism includes a motor (31) and an eccentric wheel (32) driven by the motor. The rotation axis of the eccentric wheel (32) is perpendicular to the vibration direction of the steel plate body. After the motor is started, the rotation of the eccentric wheel (32) drives the steel plate body to vibrate periodically.
4. The slag deflector device of claim 1, wherein: The radius of curvature of the first arc segment (1) is 2m-3m, and the radius of curvature of the second arc segment (2) gradually decreases along the direction of slag falling.
5. The slag deflector device of claim 1, wherein: The support spring (4) and the bracket (5) are detachably connected. The bracket (5) is welded and fixed to the side wall of the converter (6). The extension and retraction direction of the support spring (4) is consistent with the vibration direction of the steel plate body.